Evasive action taken while on radar vector for visual approach runway 32.

Attributes
ACN	92946
Time
Date	198808
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pit
State Reference	PA
Altitude	msl bound lower : 4000 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : pit
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach
Route In Use	approach : visual enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 100 flight time total : 7000 flight time type : 2000
ASRS Report	92946
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 12000 vertical : 0
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	other

Narrative:

We were being radar vectored to an ILS visual final approach to runway 32 at pit. We were vectored across final for spacing. Shortly after crossing the final we were given a right turn of about 90 degrees to reintercept the final and also given a descent from 7000 to 4000'. There was no mention of traffic. As I started the turn I saw an medium large transport at the same altitude coming towards us. He was now also in a right turn away from us. I would estimate that we came within 2 mi of each other. After we landed we contacted approach control by phone. The supervisor asked us if we got clearance to 6000'. Neither the captain nor I heard any altitude clearance except the one from 7000 to 4000'. We told him we would gladly preserve the cockpit voice recorder tape to support our story. He said that it wasn't necessary. We didn't feel that it was close enough to warrant a near miss report, although it did probably violate prescribed ATC sep standard.

Original NASA ASRS Text

Title: EVASIVE ACTION TAKEN WHILE ON RADAR VECTOR FOR VISUAL APCH RWY 32.

Narrative: WE WERE BEING RADAR VECTORED TO AN ILS VISUAL FINAL APCH TO RWY 32 AT PIT. WE WERE VECTORED ACROSS FINAL FOR SPACING. SHORTLY AFTER XING THE FINAL WE WERE GIVEN A RIGHT TURN OF ABOUT 90 DEGS TO REINTERCEPT THE FINAL AND ALSO GIVEN A DSCNT FROM 7000 TO 4000'. THERE WAS NO MENTION OF TFC. AS I STARTED THE TURN I SAW AN MLG AT THE SAME ALT COMING TOWARDS US. HE WAS NOW ALSO IN A RIGHT TURN AWAY FROM US. I WOULD ESTIMATE THAT WE CAME WITHIN 2 MI OF EACH OTHER. AFTER WE LANDED WE CONTACTED APCH CTL BY PHONE. THE SUPVR ASKED US IF WE GOT CLRNC TO 6000'. NEITHER THE CAPT NOR I HEARD ANY ALT CLRNC EXCEPT THE ONE FROM 7000 TO 4000'. WE TOLD HIM WE WOULD GLADLY PRESERVE THE COCKPIT VOICE RECORDER TAPE TO SUPPORT OUR STORY. HE SAID THAT IT WASN'T NECESSARY. WE DIDN'T FEEL THAT IT WAS CLOSE ENOUGH TO WARRANT A NEAR MISS RPT, ALTHOUGH IT DID PROBABLY VIOLATE PRESCRIBED ATC SEP STANDARD.

Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.